Average Co-Inventor Count = 3.20
ph-index = 2
The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.
Company Filing History:
1. Westinghouse Air Brake Company (2 from 582 patents)
2. Albert A. Mckay (0 patent)
3. Ulf Stahmer (0 patent)
4. Eric G. Smith (0 patent)
5. David A. Porteous (0 patent)
6. Stanley John Pasek (0 patent)
7. Jeffrey D. Reid (0 patent)
8. Trevor A. Scott (0 patent)
9. W. Thomas Digweed (0 patent)
2 patents:
1. 5559281 - Test connector for accessing compressed air at test ports of a railroad
2. 5293777 - Hinged assembly for air brake valve test fixture